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A reaction involving 93 mg of aniline, 122 mg of p-hydroxybenzaldehyde, 2 ml of absolute alcohol and a stir bar are placed in a 150X18 mm test tube. One drop of 1N HCl is added to the stirred solution which is heated in a boiling water bath for 5 minutes. on cooling a precipitate is deposited which is collected and recrystallized in absolute alcohol. What is the product of this reaction?
A mixture of CS2 (g) and excess O2 (g) is placed in a 10.0 L reaction vessel at 100.0 degrees C and the pressure of 3.00 atm, A spark causes the CS2 to ignite, burning it completely, according to the equation:
determine how many grams of oxygeno2 would be used when 10.82 litres nitric oxide nog is formed at the temperature of
in an organic compound % of carbon is 75.2%,% of hydrogen is 10.75 and % of oxygen is 14.03..Find the empirical formula of compound?
Use qualitative molecular orbital theory to explain why Na2O2 is diamagnetic and KO2 is paramagnetic (use the appropriate diagram from the notes. Use MO to explain the nature of the oxygen-oxygen bond in the complex anions). What is the oxygen-oxy..
A gas occupies a volume of 480 mL at 127 degrees celsius and 148 mmHg. What mathematical expresssion will yield the correct volume at 177 degrees celsius and 400mgHg?
Niobium (Nb) has a BCC cubic crystal structure, and an atomic radius of 0.144 nm. a) Calculate the edge length (d) of a niobium unit cell:
In photography, unexposed silver bromide is removed from film by soaking the film in a solution of sodium thiosulfate, Na2S2O3. Silver ion forms a soluble complex with thiosulfate ion
How much HCl is leftover after the 20.0 mol of HCl reacts with the 12.5 mol of NaOH?
The shorthand notation for the galvanic cell reaction Fe3+(aq) + 2 I-(aq) ? Fe2+(aq) + I2(s) requires an inert electrode on A) only on the right side of the salt bridge
Draw Fischer projections for the two D-aldoheptoses whose stereochemistry at C3, C4, C5, and C6 is the same as that of D-idose at C2, C3, C4, and C5
Which sequence of reactions would you use to synthesize 2-cyanohexane (racemic mixture) using 1-hexene as your starting material? options: a) Reaction with (1) H2SO4 (cat.)
A student accidentally mixed small pure white crystals of napthalene into a small vial containing small white crystals of disodium malonate. What can she do to purify the disodium malonate away from the naphtalene quickly
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